<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>函数的柯里化</title>
</head>

<body>
    <script>
        function sum(a) {
            return (b) => {
                return (c) => {//所有的箭头函数都必须有返回值
                    return a + b + c
                }
            }
        }
        const s = sum(1)(2)(3)
        console.log(s)
    </script>
</body>

</html>